2 * Copyright (c) 1997 - 2002 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the Institute nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
45 #define ISFLAG(X) ((X).type == arg_flag || (X).type == arg_negative_flag)
48 print_arg (char *string,
53 char *(i18n)(const char *))
59 if (ISFLAG(*arg) || (!longp && arg->type == arg_counter))
64 strlcat(string, "= Ns", len);
65 strlcat(string, " Ar ", len);
68 strlcat (string, "=", len);
70 strlcat (string, " ", len);
74 s = (*i18n)(arg->arg_help);
75 else if (arg->type == arg_integer || arg->type == arg_counter)
77 else if (arg->type == arg_string)
79 else if (arg->type == arg_strings)
81 else if (arg->type == arg_double)
86 strlcat(string, s, len);
91 mandoc_template(struct getargs *args,
94 const char *extra_string,
95 char *(i18n)(const char *))
98 char timestr[64], cmd[64];
103 printf(".\\\" Things to fix:\n");
104 printf(".\\\" * correct section, and operating system\n");
105 printf(".\\\" * remove Op from mandatory flags\n");
106 printf(".\\\" * use better macros for arguments (like .Pa for files)\n");
109 strftime(timestr, sizeof(timestr), "%B %e, %Y", localtime(&t));
110 printf(".Dd %s\n", timestr);
111 p = strrchr(progname, '/');
112 if(p) p++; else p = progname;
113 strlcpy(cmd, p, sizeof(cmd));
116 printf(".Dt %s SECTION\n", cmd);
117 printf(".Os OPERATING_SYSTEM\n");
118 printf(".Sh NAME\n");
119 printf(".Nm %s\n", p);
121 printf("in search of a description\n");
122 printf(".Sh SYNOPSIS\n");
124 for(i = 0; i < num_args; i++){
125 /* we seem to hit a limit on number of arguments if doing
126 short and long flags with arguments -- split on two lines */
127 if(ISFLAG(args[i]) ||
128 args[i].short_name == 0 || args[i].long_name == NULL) {
131 if(args[i].short_name) {
132 print_arg(buf, sizeof(buf), 1, 0, args + i, i18n);
133 printf("Fl %c%s", args[i].short_name, buf);
134 if(args[i].long_name)
137 if(args[i].long_name) {
138 print_arg(buf, sizeof(buf), 1, 1, args + i, i18n);
140 args[i].type == arg_negative_flag ? "no-" : "",
141 args[i].long_name, buf);
145 print_arg(buf, sizeof(buf), 1, 0, args + i, i18n);
146 printf(".Oo Fl %c%s \\*(Ba Xo\n", args[i].short_name, buf);
147 print_arg(buf, sizeof(buf), 1, 1, args + i, i18n);
148 printf(".Fl -%s%s\n.Xc\n.Oc\n", args[i].long_name, buf);
151 if(args[i].type == arg_strings)
152 fprintf (stderr, "...");
155 if (extra_string && *extra_string)
156 printf (".Ar %s\n", extra_string);
157 printf(".Sh DESCRIPTION\n");
158 printf("Supported options:\n");
159 printf(".Bl -tag -width Ds\n");
160 for(i = 0; i < num_args; i++){
162 if(args[i].short_name){
163 printf(".Fl %c", args[i].short_name);
164 print_arg(buf, sizeof(buf), 1, 0, args + i, i18n);
166 if(args[i].long_name)
170 if(args[i].long_name){
172 args[i].type == arg_negative_flag ? "no-" : "",
174 print_arg(buf, sizeof(buf), 1, 1, args + i, i18n);
179 printf("%s\n", args[i].help);
181 if(args[i].type == arg_strings)
182 fprintf (stderr, "...");
186 printf(".\\\".Sh ENVIRONMENT\n");
187 printf(".\\\".Sh FILES\n");
188 printf(".\\\".Sh EXAMPLES\n");
189 printf(".\\\".Sh DIAGNOSTICS\n");
190 printf(".\\\".Sh SEE ALSO\n");
191 printf(".\\\".Sh STANDARDS\n");
192 printf(".\\\".Sh HISTORY\n");
193 printf(".\\\".Sh AUTHORS\n");
194 printf(".\\\".Sh BUGS\n");
198 check_column(FILE *f, int col, int len, int columns)
200 if(col + len > columns) {
202 col = fprintf(f, " ");
208 builtin_i18n(const char *str)
210 return rk_UNCONST(str);
213 void ROKEN_LIB_FUNCTION
214 arg_printusage (struct getargs *args,
216 const char *progname,
217 const char *extra_string)
219 return arg_printusage_i18n(args, num_args, "Usage",
220 progname, extra_string, builtin_i18n);
223 void ROKEN_LIB_FUNCTION
224 arg_printusage_i18n (struct getargs *args,
227 const char *progname,
228 const char *extra_string,
229 char *(i18n)(const char *))
234 int col = 0, columns;
237 if (progname == NULL)
238 progname = getprogname();
243 if(getenv("GETARGMANDOC")){
244 mandoc_template(args, num_args, progname, extra_string, i18n);
247 if(get_window_size(2, &ws) == 0)
252 col += fprintf (stderr, "%s: %s", usage, progname);
254 for (i = 0; i < num_args; ++i) {
255 if(args[i].short_name && ISFLAG(args[i])) {
258 strlcpy(buf, "[-", sizeof(buf));
259 s[0] = args[i].short_name;
261 strlcat(buf, s, sizeof(buf));
265 strlcat(buf, "]", sizeof(buf));
266 col = check_column(stderr, col, strlen(buf) + 1, columns);
267 col += fprintf(stderr, " %s", buf);
270 for (i = 0; i < num_args; ++i) {
273 if (args[i].long_name) {
275 strlcat(buf, "[--", sizeof(buf));
277 if(args[i].type == arg_negative_flag) {
278 strlcat(buf, "no-", sizeof(buf));
281 strlcat(buf, args[i].long_name, sizeof(buf));
282 len += strlen(args[i].long_name);
283 len += print_arg(buf + strlen(buf), sizeof(buf) - strlen(buf),
284 0, 1, &args[i], i18n);
285 strlcat(buf, "]", sizeof(buf));
286 if(args[i].type == arg_strings)
287 strlcat(buf, "...", sizeof(buf));
288 col = check_column(stderr, col, strlen(buf) + 1, columns);
289 col += fprintf(stderr, " %s", buf);
291 if (args[i].short_name && !ISFLAG(args[i])) {
292 snprintf(buf, sizeof(buf), "[-%c", args[i].short_name);
294 len += print_arg(buf + strlen(buf), sizeof(buf) - strlen(buf),
295 0, 0, &args[i], i18n);
296 strlcat(buf, "]", sizeof(buf));
297 if(args[i].type == arg_strings)
298 strlcat(buf, "...", sizeof(buf));
299 col = check_column(stderr, col, strlen(buf) + 1, columns);
300 col += fprintf(stderr, " %s", buf);
302 if (args[i].long_name && args[i].short_name)
304 max_len = max(max_len, len);
307 check_column(stderr, col, strlen(extra_string) + 1, columns);
308 fprintf (stderr, " %s\n", extra_string);
310 fprintf (stderr, "\n");
311 for (i = 0; i < num_args; ++i) {
315 if (args[i].short_name) {
316 count += fprintf (stderr, "-%c", args[i].short_name);
317 print_arg (buf, sizeof(buf), 0, 0, &args[i], i18n);
318 count += fprintf(stderr, "%s", buf);
320 if (args[i].short_name && args[i].long_name)
321 count += fprintf (stderr, ", ");
322 if (args[i].long_name) {
323 count += fprintf (stderr, "--");
324 if (args[i].type == arg_negative_flag)
325 count += fprintf (stderr, "no-");
326 count += fprintf (stderr, "%s", args[i].long_name);
327 print_arg (buf, sizeof(buf), 0, 1, &args[i], i18n);
328 count += fprintf(stderr, "%s", buf);
330 while(count++ <= max_len)
332 fprintf (stderr, "%s\n", (*i18n)(args[i].help));
338 add_string(getarg_strings *s, char *value)
342 strings = realloc(s->strings, (s->num_strings + 1) * sizeof(*s->strings));
343 if (strings == NULL) {
349 s->strings = strings;
350 s->strings[s->num_strings] = value;
356 arg_match_long(struct getargs *args, size_t num_args,
357 char *argv, int argc, char **rargv, int *goptind)
360 char *goptarg = NULL;
362 int partial_match = 0;
363 struct getargs *partial = NULL;
364 struct getargs *current = NULL;
369 argv_len = strlen(argv);
370 p = strchr (argv, '=');
374 for (i = 0; i < num_args; ++i) {
375 if(args[i].long_name) {
376 int len = strlen(args[i].long_name);
382 if (strncmp (args[i].long_name, p, p_len) == 0) {
390 } else if (ISFLAG(args[i]) && strncmp (p, "no-", 3) == 0) {
402 if (current == NULL) {
403 if (partial_match == 1)
406 return ARG_ERR_NO_MATCH;
411 && current->type != arg_collect
412 && current->type != arg_counter)
413 return ARG_ERR_NO_MATCH;
414 switch(current->type){
418 if(sscanf(goptarg + 1, "%d", &tmp) != 1)
419 return ARG_ERR_BAD_ARG;
420 *(int*)current->value = tmp;
425 *(char**)current->value = goptarg + 1;
430 return add_string((getarg_strings*)current->value, goptarg + 1);
433 case arg_negative_flag:
435 int *flag = current->value;
436 if(*goptarg == '\0' ||
437 strcmp(goptarg + 1, "yes") == 0 ||
438 strcmp(goptarg + 1, "true") == 0){
441 } else if (*goptarg && strcmp(goptarg + 1, "maybe") == 0) {
443 *flag = random() & 1;
451 return ARG_ERR_BAD_ARG;
457 if (*goptarg == '\0')
459 else if(sscanf(goptarg + 1, "%d", &val) != 1)
460 return ARG_ERR_BAD_ARG;
461 *(int *)current->value += val;
467 if(sscanf(goptarg + 1, "%lf", &tmp) != 1)
468 return ARG_ERR_BAD_ARG;
469 *(double*)current->value = tmp;
473 struct getarg_collect_info *c = current->value;
474 int o = argv - rargv[*goptind];
475 return (*c->func)(FALSE, argc, rargv, goptind, &o, c->data);
484 arg_match_short (struct getargs *args, size_t num_args,
485 char *argv, int argc, char **rargv, int *goptind)
489 for(j = 1; j > 0 && j < strlen(rargv[*goptind]); j++) {
490 for(k = 0; k < num_args; k++) {
493 if(args[k].short_name == 0)
495 if(argv[j] == args[k].short_name) {
496 if(args[k].type == arg_flag) {
497 *(int*)args[k].value = 1;
500 if(args[k].type == arg_negative_flag) {
501 *(int*)args[k].value = 0;
504 if(args[k].type == arg_counter) {
505 ++*(int *)args[k].value;
508 if(args[k].type == arg_collect) {
509 struct getarg_collect_info *c = args[k].value;
511 if((*c->func)(TRUE, argc, rargv, goptind, &j, c->data))
512 return ARG_ERR_BAD_ARG;
517 goptarg = &argv[j + 1];
520 goptarg = rargv[*goptind];
522 if(goptarg == NULL) {
524 return ARG_ERR_NO_ARG;
526 if(args[k].type == arg_integer) {
528 if(sscanf(goptarg, "%d", &tmp) != 1)
529 return ARG_ERR_BAD_ARG;
530 *(int*)args[k].value = tmp;
532 } else if(args[k].type == arg_string) {
533 *(char**)args[k].value = goptarg;
535 } else if(args[k].type == arg_strings) {
536 return add_string((getarg_strings*)args[k].value, goptarg);
537 } else if(args[k].type == arg_double) {
539 if(sscanf(goptarg, "%lf", &tmp) != 1)
540 return ARG_ERR_BAD_ARG;
541 *(double*)args[k].value = tmp;
544 return ARG_ERR_BAD_ARG;
548 return ARG_ERR_NO_MATCH;
553 int ROKEN_LIB_FUNCTION
554 getarg(struct getargs *args, size_t num_args,
555 int argc, char **argv, int *goptind)
560 #if defined(HAVE_SRANDOMDEV)
562 #elif defined(HAVE_RANDOM)
568 for(i = *goptind; i < argc; i++) {
569 if(argv[i][0] != '-')
571 if(argv[i][1] == '-'){
576 ret = arg_match_long (args, num_args, argv[i] + 2,
579 ret = arg_match_short (args, num_args, argv[i],
589 void ROKEN_LIB_FUNCTION
590 free_getarg_strings (getarg_strings *s)
602 struct getargs args[] = {
603 { NULL, '1', arg_flag, &flag1, "one", NULL },
604 { NULL, '2', arg_flag, &flag2, "two", NULL },
605 { "foo", 'f', arg_negative_flag, &foo_flag, "foo", NULL },
606 { "bar", 'b', arg_integer, &bar_int, "bar", "seconds"},
607 { "baz", 'x', arg_string, &baz_string, "baz", "name" },
610 int main(int argc, char **argv)
613 while(getarg(args, 5, argc, argv, &goptind))
614 printf("Bad arg: %s\n", argv[goptind]);
615 printf("flag1 = %d\n", flag1);
616 printf("flag2 = %d\n", flag2);
617 printf("foo_flag = %d\n", foo_flag);
618 printf("bar_int = %d\n", bar_int);
619 printf("baz_flag = %s\n", baz_string);
620 arg_printusage (args, 5, argv[0], "nothing here");